<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
	</head>
	<body>
		<form>
			<input />
			<input type="submit" /><!-- submit:按钮 --> 
			<!-- <button>按钮</button>
			 给用户一个输入方式
			 -->
		</form>
	</body>
</html>
